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- New challenges - 1
1, 2by JPF » Tue Jun 16, 2020 3:35 pm - 21 Replies
- 2152 Views
- Last post by m_b_metcalf
Fri Jul 03, 2020 9:27 am
- New challenges - 1
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- Patterns Game benchmark file
1, 2
by m_b_metcalf » Thu Nov 19, 2015 8:28 am
- 27 Replies
- 3579 Views
- Last post by 1to9only
Thu May 28, 2020 5:43 pm
- Patterns Game benchmark file
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- Bad programming Sudoku
by Fritsel » Sat Jan 04, 2020 10:59 am - 10 Replies
- 1233 Views
- Last post by SpAce
Sun May 10, 2020 10:15 pm
- Bad programming Sudoku
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- Investigation of 4 free boxes (square) patterns
1, 2by Serg » Sat Mar 14, 2020 5:04 pm - 27 Replies
- 2698 Views
- Last post by coloin
Wed May 06, 2020 11:34 am
- Investigation of 4 free boxes (square) patterns
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- Number of non equivalent patterns having N clues
1, 2by JPF » Sun Apr 22, 2012 11:18 pm - 22 Replies
- 6490 Views
- Last post by coloin
Wed May 06, 2020 10:58 am
- Number of non equivalent patterns having N clues
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- Backdoors and puzzle difficulty level
by Mauriès Robert » Fri Apr 17, 2020 11:53 am - 4 Replies
- 1021 Views
- Last post by StrmCkr
Thu Apr 23, 2020 1:54 am
- Backdoors and puzzle difficulty level
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- New video on the Swordfish technique
by dxSudoku » Sun Apr 19, 2020 3:54 am - 0 Replies
- 693 Views
- Last post by dxSudoku
Sun Apr 19, 2020 3:54 am
- New video on the Swordfish technique
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- Please need HELP !!!!!
by Fehmi » Wed Jan 22, 2020 4:41 am
- 3 Replies
- 784 Views
- Last post by dxSudoku
Mon Apr 13, 2020 3:18 pm
- Please need HELP !!!!!
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- Website "Assistant Sudoku"
by Mauriès Robert » Sat Apr 04, 2020 8:57 am - 0 Replies
- 824 Views
- Last post by Mauriès Robert
Sat Apr 04, 2020 8:57 am
- Website "Assistant Sudoku"
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- A new fish collection
by pjb » Sun Mar 22, 2020 6:37 am - 1 Replies
- 960 Views
- Last post by tarek
Sun Mar 22, 2020 8:16 am
- A new fish collection
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- Sudoku - difficulty classification
by swaatacba » Sat Feb 08, 2020 10:22 am
- 6 Replies
- 967 Views
- Last post by swaatacba
Tue Feb 11, 2020 10:11 pm
- Sudoku - difficulty classification
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- medium sudoku books
by bugs » Sat Feb 01, 2020 10:10 pm - 1 Replies
- 878 Views
- Last post by Mathimagics
Mon Feb 03, 2020 2:00 pm
- medium sudoku books
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- Solution counts after random generation, 1 clue relaxation
by tdillon » Sun Jan 26, 2020 7:20 am - 10 Replies
- 1196 Views
- Last post by tdillon
Wed Jan 29, 2020 5:51 pm
- Solution counts after random generation, 1 clue relaxation
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- independent grid Sudoku
by hj_18 » Fri Jan 10, 2020 1:20 am - 0 Replies
- 855 Views
- Last post by hj_18
Fri Jan 10, 2020 1:20 am
- independent grid Sudoku
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- I use translate
by itadep » Fri Dec 06, 2019 2:42 pm - 0 Replies
- 865 Views
- Last post by itadep
Fri Dec 06, 2019 2:42 pm
- I use translate
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- I need a sudoku board recommendation for Christmas!
by AngeLinus » Mon Dec 02, 2019 6:44 am - 0 Replies
- 830 Views
- Last post by AngeLinus
Mon Dec 02, 2019 6:44 am
- I need a sudoku board recommendation for Christmas!
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- Backdoor, T&E or Colouring?
by Yogi » Mon Nov 25, 2019 5:16 am - 5 Replies
- 1124 Views
- Last post by Mauriès Robert
Sat Nov 30, 2019 4:35 pm
- Backdoor, T&E or Colouring?
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- Help with Next Steps in this game
by azncandylovero4 » Sat Nov 23, 2019 8:27 pm
- 2 Replies
- 836 Views
- Last post by azncandylovero4
Sun Nov 24, 2019 2:03 pm
- Help with Next Steps in this game
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- Double Sudoku 9x9 success
by Pupp » Tue Nov 05, 2019 2:54 am - 3 Replies
- 1910 Views
- Last post by 1to9only
Tue Nov 12, 2019 5:27 pm
- Double Sudoku 9x9 success
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- High Clue Puzzles
by Mathimagics » Mon Nov 04, 2019 9:45 am - 5 Replies
- 1037 Views
- Last post by dobrichev
Mon Nov 04, 2019 1:24 pm
- High Clue Puzzles
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- No grids with MCN > 16
by Mathimagics » Tue Jul 23, 2019 6:23 pm - 8 Replies
- 1286 Views
- Last post by dobrichev
Mon Nov 04, 2019 12:36 pm
- No grids with MCN > 16
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- Hello everybody (I'm new)
by Pupp » Sun Oct 20, 2019 2:28 pm - 7 Replies
- 1097 Views
- Last post by Pupp
Sat Oct 26, 2019 11:56 am
- Hello everybody (I'm new)
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- How to Solve a Sudoku
by luanvanviet » Fri Sep 27, 2019 9:40 am - 1 Replies
- 1085 Views
- Last post by Pupp
Mon Oct 21, 2019 2:58 am
- How to Solve a Sudoku
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- Newspaper Ratings
by m_b_metcalf » Tue Oct 01, 2019 3:08 pm - 1 Replies
- 968 Views
- Last post by dobrichev
Tue Oct 01, 2019 3:31 pm
- Newspaper Ratings
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- Intrinsically Difficult Patterns
by m_b_metcalf » Wed Apr 01, 2009 4:38 pm - 2 Replies
- 1940 Views
- Last post by champagne
Sun Sep 08, 2019 12:26 pm
- Intrinsically Difficult Patterns
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- Rating Invalid puzzles
by dobrichev » Mon Jul 22, 2019 2:39 pm - 11 Replies
- 1194 Views
- Last post by denis_berthier
Wed Jul 24, 2019 2:29 pm
- Rating Invalid puzzles
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- Minimum number of checks
1 ... 4, 5, 6 by denis_berthier » Sun Jun 30, 2019 6:18 am
- 83 Replies
- 6663 Views
- Last post by StrmCkr
Mon Jul 22, 2019 7:06 pm
- Minimum number of checks
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- Intercalates v UA4's
1, 2by Mathimagics » Fri Jul 19, 2019 7:57 am - 15 Replies
- 1863 Views
- Last post by dobrichev
Mon Jul 22, 2019 2:22 pm
- Intercalates v UA4's
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- UA Set for a Given Grid
1, 2, 3by Mathimagics » Fri Jun 28, 2019 3:50 pm - 31 Replies
- 3166 Views
- Last post by Mathimagics
Mon Jul 01, 2019 12:05 pm
- UA Set for a Given Grid
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- Android Sudoku app
by JasonLion » Fri Jun 28, 2019 7:10 pm - 1 Replies
- 1014 Views
- Last post by 1to9only
Fri Jun 28, 2019 7:56 pm
- Android Sudoku app
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- Investigation of one-band-free patterns
by dogiaokhanhlinh » Mon May 27, 2019 9:33 am - 3 Replies
- 1192 Views
- Last post by Mathimagics
Wed May 29, 2019 2:54 am
- Investigation of one-band-free patterns
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- Sudoku variants summary
by Wecoc » Mon May 13, 2019 6:38 pm - 0 Replies
- 1623 Views
- Last post by Wecoc
Mon May 13, 2019 6:38 pm
- Sudoku variants summary
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- How to Solve Sudoku Puzzles
by luanvanviet » Wed Feb 13, 2019 8:27 am - 1 Replies
- 1223 Views
- Last post by susannelson
Fri May 10, 2019 6:37 am
- How to Solve Sudoku Puzzles
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- Creating a puzzle, help
by Trilola » Sun Apr 07, 2019 2:01 am - 7 Replies
- 1148 Views
- Last post by brunoz
Mon May 06, 2019 9:22 am
- Creating a puzzle, help
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- gaming system and method for sudoku-based game - patent
by 1to9only » Fri Apr 12, 2019 9:19 am - 0 Replies
- 923 Views
- Last post by 1to9only
Fri Apr 12, 2019 9:19 am
- gaming system and method for sudoku-based game - patent
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- Sudoku Survey
by aml » Thu Feb 14, 2019 2:03 pm - 6 Replies
- 1178 Views
- Last post by Mathimagics
Sat Feb 23, 2019 8:37 pm
- Sudoku Survey
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